Slicing machine



April 12, 1938. H. H. MOKEE El AL SLICING MACHINE :5 she e'fssheet ..1

Filed May 15, 1956 INVENTQRS BY T @W 37 ATTORNEY April 12, 1938. H, H. MOKEE ET AL 2,113,851

' SLICING MACHINE Filed May 13, 1936 5 Sheets-Sheet 2 a ATTORNEY April 12, 1938. H. H. MCKEE ET AL 2,113,351

SLICING MACHINE Filed May 13, 1936 3 Shets-Sheet :5

IIW' IIHI' H52. 9

' ATTORNEY Patented Apr. 12, 1938 UNITED STATES 2,113,851 SLIOING MACHINE Harry R. McKee and Nicholas J. Dziedzic, Chicago. lll., assignors to Industrial Patents Corporation, Chicago, 11]., a corporation of Delaware 1 Application May 13,

10 Claims.

This invention relates to an improved slicing machine. One of the objects of the present invention is to provide an improved slicing machine.

Another object of the invention is to provide an improved slicing machine embodying a movable shear means yieldably mounted relative to the cutter. 1

Another object of the invention is to provide an improved slicing machine embodying a movable spring-tensioned shear means yieldably mounted relative to and engageable with the cutter.

Another object of the invention is to provide an improved slicing machine embodying a springtensioned shear plate movable from and toward the cutter and having guide means engageable with the cutter by which movement of the shear plate toward the cutteris limited.

Other objects of the invention will be apparen fromthe description and claims which follow.

The shear means forming the present invention is movably mounted within the framework of the slicing machine for movement from and toward the cutter and is continuously yieldably urged in a forwardly direction toward the cutter. The shearing edge of the shear plate is held substantially in vertical alignment with the cutting edge of the cutter by suitable guide means in engagement with the cutter. This relationship eliminates the clearance which otherwise occurs between the shear plate and the cutter by which there is provided safer operation of the slicing machine and keen accurate cutting of the product adjacent the shearing edge.

The shear means of the present invention may be employed in all classes of Slicing machines, whether the cutter utilized in the machine be of the reciprocating, rotary or oscillating type.

Referring to the drawings in which like characters of reference are used to indicate similar elements:

Figure 1 is a fragmentary side view of a slicing machine utilizing the shear means of the a present invention.

Figure 2 is a plan view of the shear means mounted within the frame of the slicing machine.

Figure 3 is a side view, partly in section, of the slicing machine illustrated in Figure 1.

Figure 4 is aplan view of the shear plate and guide means.

Figure 5 is a front view of Figure 4. Figure 6 is a sectional view taken on line 6- of Figure 5. I

Figure 7 is a side view of the latch mechanism 1936, Serial No. 79,558

for holding the shear means out of engagement with the cutter.

Figure 8 is an end view of Figure 7. I

Figure 9 is a plan view of the lever for moving the shear means out of engagement with' the cutter.

Figure 10 is a side view of Figure 9.,

Figure 11 is a. plan view of the lever bracket.

Figure 12 is a side view of Figure 11.

Figure 13 is an end view of Figure 12.

Figure 14 is a front view of the shear means of the present invention illustrating its use with a cutter of the oscillating type.

The slicing machine, illustrated in the draw- .ings, comprehends a frame I, a cutter 2, a feed means 3, a shear means 4, and a slice receiving means 5.

Referring to' Figures 1, 2 and 3 of the drawings, cutter 2 of the reciprocating type, is mounted upon cross head 6 provided with hubs 'I slidable upon vertical guide posts 8 suitably secured to the frame I. Cutter 2 is beveled on face II) as s at 9 to,provide cutting edge II adjacent shear means 4. Cutter 2 may be power driven in any suitable manner, not shown.

Feed means 3 comprises conveyors I2 and I3 of the endless type. Conveyor I2 passes over sprockets I4 pinioned to shafts I 5 joumaled within bearings I6 mounted in the framework I.

suitable type, such as is provided by multiple chains or cords. Conveyor 5 passes over sprockets 2I pinioned to shafts 22 joumaled within suitable bearings mounted within framework I.

If desired, conveyor 5 may be constructed to include slow moving conveying elements and fast moving conveying elements and transfer mechanism for separating the cut slices into groups of a predetermined number, suchas is more fully described in our U. S. Patent No. 1,916,855. dated October 16, 1934 entitled Spacing conveyor.

Shear means 4 comprises shear plate 23 slidably mounted upon horizontal cross pieces 24 and 25 and between vertical side pieces 26 and 21 of the frame I. If desired, vertical sides 26 and 21 may be flanged on their inner faces in a manner to cooperate with cross pieces 24 and 25 so as to provide channel grooves for securely mounting the plate 23 against upward movement from cross pieces 24 and 25. In practice, however, this has not been found necessary, the plate 23 due to its weight being securely maintained in its horizontal position by gravity.

Plate. 23 is continuously urged in a forwardly direction toward cutter 2 by springs 25 and 23. Springs 28 and 29 are respectively coiled around bolts 33 and 3| in a manner to provide tensioning of the plate 23 in aforwardiy direction toward the cutter' 2. Bolts 30 and 3i may be threaded within sidefmembers 32 and 33 of the frame I. Springs 28 and 29 are secured at their .ends 34 and 35 to flanges 36 and 31 rigidly se- 43 of plate 2 3. Guidestrip 42 preferably consists of a high-grade tempered tool steel and is machined on its face 41 to reducewear and friction against cutter 2 to a minimum. Guide strip 42 is mounted. in a, plane above the upper limit of movement of cutter 2 such that it will at all times be in engagement with the cutter 2.

Shear plate 23 may be cut away as at 49 for i the reception of shear strip 50 of a material similar to guide strip 42. A shear strip of this material is found desirable to provide uniform wear between guide strip 42 and the shearing edge of plate 23.

' Guide plates 5| and 52 are secured against the inner edges of brackets 43 and 44 by which the slabs of bacon I! are restrained against sidesway during the cutting operation. Plate 23 may be beveled at its rearward edge as at 53 to guide the forwardly sagging ends of the bacon slabs i1 coming from feeding means 3 When it is desired, for any reason, to remount or replace the cutter 2, shearing means 4 may be removed from cutter 2 and temporarily held in locked position therefrom. This is accomplished through the medium of lever 54 pivotally mounted as at 55 by bolt member 56 to angle bracket 51 rigidly secured to the side of frame i as by bolts 55. Lever 54 passes through opening 59 in side member 21 of frame I and-is pivoted to plate 23 by means of pivot pin Si in registry with opening 55. Lever 54 is manually operated from andle 52. Pin 54, integral with bracket 51, is n registry with slot 53 in lever 54 and serves to limit pivotal movements of the lever 54.

The shear means is removed from engagement with the cutter 2 by movement of lever 54 in a forwardly direction as indicated by the arrow and the shear means may be temporarily locked in withdrawn position by jaw 55 of spring-tenfsioned latch 61. Jaw 66 normally rides upon "I4 integral with latch 61.

the upper surface of lever 54 and serves to clear and engage-lever 54 at its side edge 58. Latch 51 is pinioned or keyed to shaft 69 journaled in bearing bracket 10 secured to framework l' as by' bolts ll. Latch 51 is continuously urged into locking position by means of coiled spring 12 compressed between bore 13 in frame i and member right angle as at I5 to provide arm 16 which serves to operate latch 61 when it is desired to release lever 54 to return shear means 4 to its forwardly position toward the cutter 2.

Shaft 59 is bent at The shear means of the present invention may be employed in slicing machines utilizing acutter of the oscillating or rotary type as well as acutter of the reciprocating type. As shownin Figure 14,

tially constant radii from the shaft 33. which cir-' cular portion 8| extends within the path of guide strip 42 and serves to provide a continuous thrust surface for the guide strip 42 whereby forward movement of shear plate 23 relative to the cutter i1 is at all times. limited.

The term cutter" as used in the claims, will be understood, where appropriate, to include cutters of the reciprocating, rotary, and-oscillating types.

We claim:

1. In a sliding machine including a frame and a cutter having a movable blade, a shear plate movably mounted within the frame for movement from and toward the blade, means including springs connected with the frame and shear late for yieldably urging the shear plate towar the blade, guide means connected with the shear plate for limiting movement of the shear plate toward the blade whereby the blade will engage the shear plate adjacent the shearing edge during the cutting operation, the guide means including a bar having an outer face in substantially vertical alignment with the shearing edge of the shear plate and in slidable engagement with the blade.

2. In a slicing machine including a frame and a cutter having a movable blade, a shear plate movably mounted within the frame for movement from and toward the blade, means including springs for yieldably urging the shear plate in engagement with the blade during the cutting operation, and means for removably holding the shear plate against the 'action of the springs and from engagement with the blade during non-operation of the blade.

3. In a slicing machine including a frame and a cutter having a movable blade, a shear plate movably mounted within the frame for movement from and toward the blade, means including springs for yieldably urging the shear'plate in engagement with the blade during the cutting operation, and means including a lever pivotally connected to the frame and shear plate for removing and holding the shear plate against the action of the springs and from engagement with the blade during non-operation of the blade.

4. In a slicing machine including a frame and a cutter having a movable blade, a shear plate movably mounted withinthe frame for movement from and toward the blade, means including springs for yieldably urging the shear plate in engagement with the blade during the cutting operation, means including a lever pivotally mounted to the frame and shear plate for removing and holding the shear plate against the action of the springs and out of engagement with the blade during non-operation of the blade, andmeans engageable with the lever for locking the shear plate in non-engaging position. v

5. In a slicing machine including a frame and a cutter having a movable blade, a shear plate movably mounted within the frame for movement from and toward the blade, means including springs for yieldably urging the shear plate in engagement with the blade during the cutting operation, means including a lever pivotally mounted to the frame and shear plate for removing and holding the shear plate against the action of the springs and out of engagement with the blade during non-operation of the blade, and means including a spring-tensioned latch connected with the frame and engageable with the lever for locking'the shear plate in non-engaging position.

6. In a slicing machine including a frame and a cutter having a reciprocating blade, a shear plate movably mounted in the frame for movement from and toward the blade, means including springs connected with the frame and shear plate for yieldably urging the shear plate toward the blade, guide means connected with the shear plate for limiting movement of the shear plate toward the blade and'for aligning the shearing edge of the shear plate against the blade during the cutting operation, the guide means including a bar having an outer face in substantially vertical alignment with the shearing edge of the shear plate and in slidable engagement with the lade.

7. In a slicingmachine including a frame and a cutter having a movable blade, a shear plate movably mounted within the frame for movement from and toward the blade, means yieldably urging the shear plate toward the blade, and a guide means rigidly connected with the shear plate, the guide means being maintained in continuous engagement with the blade and adapted to effect alignment of the shear plate with the blade whereby the shearing edge of the shear plate is maintained in engagement with the cutting edge of the blade throughout the cutting 35 .operatlon.

8. In a slicing machine including a frame and plate movably mounted within the frame for movement from and toward the blade, means yieldably urging the shear plate toward the blade, and a guide means rigidly connected with the shear plate, the guide means being maintained in continuous engagement with the blade and adapted to effect alignment of the shear plate with the blade whereby the shearing edge of the shear plate is maintained in engagement with the cutting edge of the blade throughout the cutting operation.

9. In a slicing machine including a frame and a cutter having a movable blade, a shear plate movably mounted within'the frame for movement from and toward the blade,'means yieldably urging the shearing edge of the shear plate in engagement with the 'cutting edgeof the blade during the cutting operation, and means connected with the shear plate and in constant yieldable engagement 'with the blade maintaining the shearing edge of the shear plate in alignment with the cutting edge of the blade between cutting movements of the blade.

10. In a slicing machine including a frame and a cutter having a reciprocating blade, a shear plate movably mounted within the frame for movement, from and toward the blade, means yieldably urging the shearing edge of the shear I plate in engagement with the cutting edge of the blade during the cutting operation, and means connected with the shear plate and in constant 1 yieldable engagement with the blade maintaining the shearing edge of the shearplate in alignment with the cutting edge. of the blade between cutting movements of the blade.

' HARRY H. McKEE.

NICHOLAS J. DZIEDZIC. 

